Tim Wise: It’s a common argument, made by those who would rather ignore or finesse the problem of racism in America. If you can’t argue the facts, never fear, just suggest that certain facts are too dangerous to be spoken. The possibility that persons of color might adopt a victim mentality once they learn the extent of racism, means we simply have to move on, and tell those who are, as a matter of fact, often the victims of injustice not to dwell on their experiences too much, lest their commitment to self-help be vitiated.